"""
Integration tests for Tool_OCR
Tests the complete flow of authentication, task creation, and file operations
"""

import pytest
from unittest.mock import patch


class TestIntegration:
    """Integration tests for end-to-end workflows"""

    def test_complete_auth_and_task_flow(self, client, db):
        """Test complete flow: login -> create task -> get task -> delete task"""

        # Step 1: Login
        from app.services.external_auth_service import AuthResponse, UserInfo

        user_info = UserInfo(
            id="integration-id-123",
            name="Integration Test User",
            email="integration@example.com"
        )
        auth_response = AuthResponse(
            access_token="test-token",
            id_token="test-id-token",
            expires_in=3600,
            token_type="Bearer",
            user_info=user_info,
            issued_at="2025-11-16T10:00:00Z",
            expires_at="2025-11-16T11:00:00Z"
        )

        with patch('app.routers.auth.external_auth_service.authenticate_user') as mock_auth:
            mock_auth.return_value = (True, auth_response, None)

            login_response = client.post('/api/v2/auth/login', json={
                'username': 'integration@example.com',
                'password': 'password123'
            })

            assert login_response.status_code == 200
            token = login_response.json()['access_token']
            headers = {'Authorization': f'Bearer {token}'}

        # Step 2: Create task
        create_response = client.post(
            '/api/v2/tasks/',
            headers=headers,
            json={
                'filename': 'integration_test.pdf',
                'file_type': 'application/pdf'
            }
        )

        assert create_response.status_code == 201
        task_data = create_response.json()
        task_id = task_data['task_id']

        # Step 3: Get task
        get_response = client.get(
            f'/api/v2/tasks/{task_id}',
            headers=headers
        )

        assert get_response.status_code == 200
        assert get_response.json()['task_id'] == task_id

        # Step 4: List tasks
        list_response = client.get(
            '/api/v2/tasks/',
            headers=headers
        )

        assert list_response.status_code == 200
        assert len(list_response.json()['tasks']) > 0

        # Step 5: Get stats
        stats_response = client.get(
            '/api/v2/tasks/stats',
            headers=headers
        )

        assert stats_response.status_code == 200
        stats = stats_response.json()
        assert stats['total'] > 0
        assert stats['pending'] > 0

        # Step 6: Delete task
        delete_response = client.delete(
            f'/api/v2/tasks/{task_id}',
            headers=headers
        )

        # DELETE returns 204 No Content (standard for successful deletion)
        assert delete_response.status_code == 204

        # Step 7: Verify deletion
        get_after_delete = client.get(
            f'/api/v2/tasks/{task_id}',
            headers=headers
        )

        assert get_after_delete.status_code == 404

    def test_admin_workflow(self, client, db):
        """Test admin workflow: login as admin -> access admin endpoints"""

        # Login as admin
        from app.services.external_auth_service import AuthResponse, UserInfo

        user_info = UserInfo(
            id="admin-id-123",
            name="Admin User",
            email="ymirliu@panjit.com.tw"
        )
        auth_response = AuthResponse(
            access_token="admin-token",
            id_token="admin-id-token",
            expires_in=3600,
            token_type="Bearer",
            user_info=user_info,
            issued_at="2025-11-16T10:00:00Z",
            expires_at="2025-11-16T11:00:00Z"
        )

        with patch('app.routers.auth.external_auth_service.authenticate_user') as mock_auth:
            mock_auth.return_value = (True, auth_response, None)

            login_response = client.post('/api/v2/auth/login', json={
                'username': 'ymirliu@panjit.com.tw',
                'password': 'adminpass'
            })

            assert login_response.status_code == 200
            token = login_response.json()['access_token']
            headers = {'Authorization': f'Bearer {token}'}

        # Access admin endpoints
        stats_response = client.get('/api/v2/admin/stats', headers=headers)
        assert stats_response.status_code == 200

        users_response = client.get('/api/v2/admin/users', headers=headers)
        assert users_response.status_code == 200

        logs_response = client.get('/api/v2/admin/audit-logs', headers=headers)
        assert logs_response.status_code == 200

    def test_task_lifecycle(self, client, auth_token, test_task, db):
        """Test complete task lifecycle: pending -> processing -> completed"""

        headers = {'Authorization': f'Bearer {auth_token}'}

        # Check initial status
        response = client.get(f'/api/v2/tasks/{test_task.task_id}', headers=headers)
        assert response.json()['status'] == 'pending'

        # Start task
        start_response = client.post(
            f'/api/v2/tasks/{test_task.task_id}/start',
            headers=headers
        )
        assert start_response.status_code == 200
        assert start_response.json()['status'] == 'processing'

        # Update task to completed
        update_response = client.patch(
            f'/api/v2/tasks/{test_task.task_id}',
            headers=headers,
            json={
                'status': 'completed',
                'processing_time_ms': 1500
            }
        )
        assert update_response.status_code == 200
        assert update_response.json()['status'] == 'completed'

        # Verify final state
        final_response = client.get(f'/api/v2/tasks/{test_task.task_id}', headers=headers)
        final_data = final_response.json()
        assert final_data['status'] == 'completed'
        assert final_data['processing_time_ms'] == 1500